Mark David Fersch, DO
NPI 1104445030ActiveIndividual· Family Medicine· Lutherville Timonium, MD
Family Medicine (DO) in Lutherville Timonium, Maryland, trained at University of North Texas Hsc, College of Osteopathic Med (class of 2020). 53 Medicare patients in 2024, $11,099 paid; nearly all of their 243 Part D prescriptions were generic (91%). Salix Pharmaceuticals, A Division of Bausch Health US, LLC was the largest of 3 companies reporting payments in 2025, $126.87 in all, mostly food and beverage.
Overview
| NPI | 1104445030 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Apr 10, 2020 |
| Last updated in NPPES | Jun 27, 2024 |
| Certified by provider | Jun 27, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | D0100636 | MD |
| Neuromusculoskeletal Medicine & OMM | 204D00000X | D0100636 | MD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 53 |
|---|---|
| Services billed | 138 across 43 procedure codes |
| Paid by Medicare | $11,099 |
Part D prescriptions in 2024
| Prescriptions (claims) | 243 · 432 30-day fills |
|---|---|
| Patients | 121 |
| Total drug cost | $15,145 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of North Texas Hsc, College of Osteopathic Med |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Family Practice |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Greater Baltimore Medical CenterTowson, MD · 354 clinicians
Hospital affiliation
- Greater Baltimore Medical CenterBaltimore, MD
Other facilities
- Bayada Home Health Care, Inc.Home health agency · Towson, MD
Industry payments (Open Payments)
- 2025$126.87 · 4 payments from 3 companies
- 2024$46.36 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $90.49 | 2 |
| Exact Sciences Corporation | $20.89 | 1 |
| Glaxosmithkline, LLC. | $15.49 | 1 |
What the 2025 payments were for
- Food and Beverage$126.87 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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